Daniel Perry, 17, had online conversations with someone he believed was a girl of the same age in the US.

He took his own life after a recording was used to try to blackmail him, and following a warning that he would be “better off dead” if he failed to pay up.

Less than an hour after receiving the message last month, he jumped to his death from the Forth Road Bridge.

It also emerged that he was taunted on the controversial website Ask.fm in the weeks before his death.

The site has already been linked to the deaths of four teenagers and is facing a backlash from advertisers following the suicide of 14-year-old Hannah Smith from Leicestershire, who suffered months of abuse from online bullies.